I need to do 3 copies of the same RDLC? HOW TO??

Question

User-448330226 posted

 Hi, i have a report (RDLC). I generate it with the control reportViewer, and in the code i use the next lines to generate it:

  

              LocalReport localReport = new LocalReport();

               .... LOAD DATASETS ...     

                localReport.SubreportProcessing += new SubreportProcessingEventHandler(localReport_SubreportProcessing);
                localReport.Refresh();

                string reportType = "PDF";
                string mimeType;
                string encoding;
                string fileNameExtension;

                string deviceInfo = "<DeviceInfo>" + 
               "  <OutputFormat>PDF</OutputFormat>" +
               "  <PageWidth>8.2in</PageWidth>" +
               "  <PageHeight>11.6in</PageHeight>" +
               "  <MarginTop>0.4in</MarginTop>" +
               "  <MarginLeft>0.4in</MarginLeft>" +
               "  <MarginRight>0.4in</MarginRight>" +
               "  <MarginBottom>0.4in</MarginBottom>" +
               "</DeviceInfo>";

                Warning[] warnings;
                string[] streams;

                byte[] renderedBytes;

                //Render the report
                localReport.ReportPath = Server.MapPath("~/reports/MAGRP_Total.rdlc");
                renderedBytes = localReport.Render(reportType, deviceInfo, out mimeType, out encoding, out fileNameExtension, out streams, out warnings);

                Response.Clear();
                Response.ContentType = "application/pdf";
                Response.AddHeader("content-disposition", "attachment; filename=" + ReportName + ".pdf");
                Response.Charset = string.Empty;
                Response.OutputStream.Write(renderedBytes , 0, renderedBytes .Length);
                Response.Flush();
                Response.Close();

 

With this code, the report runs good. the problem is that I need to generate 3 copies of the same report. I have tried to concatenatex3 the renderedBytes,  by the result is a report with a size x 3, but with only the number of pages of 1 copy of the report.

At the moment, I have a main report in which i have 3 reports (the same report x 3), but I think this is not the most efficient way to do it, because with this way i need to load the datasets of the subreports x 3.

Anyone knows any way to do it more efficient? Only with 1 report but doing anything in the code which avoid to do more copies??

 

 

 

 

 

 

Answer 1

User-1396781667 posted
Hi How about creating a 3 report viewers and adding the same rdlc file to them!! for (int i = 0; i < 4; i++)//as you need three reports { DataTable dtTable = new DataTable(); HtmlTableCell tblCell = new HtmlTableCell(); ReportViewer rptViewer = new ReportViewer(); //creating report viewer for each entity tblCell.Controls.Add(rptViewer); rowMain.Cells.Add(tblCell); //add this to the row of .aspx tblMain.Rows.Add(rowMain); rptViewer.ProcessingMode = Microsoft.Reporting.WebForms.ProcessingMode.Local; rptViewer.LocalReport.ReportPath = strReportPath; if (File.Exists(strReportPath)) { rptViewer.Height = Unit.Pixel(200); rptViewer.Width = Unit.Pixel(200); rptViewer.LocalReport.ReportEmbeddedResource = (Convert.ToString(strRDLCName) + ".rdlc"); rptViewer.LocalReport.DataSources.Clear(); if (objDataSet != null) //alots the datasource for dashboard { rptViewer.LocalReport.DataSources.Add(new ReportDataSource("DATASETNAME", objDataSet.Tables[i])); } } }

Answer 2

User-448330226 posted

No, maybe i have not explained so good...

 I can do what you say, that is to say, something like next one:

byte[] renderedBytes = null;

byte[] renderedBytesAux = null;

//Render the report

localReport.ReportPath = Server.MapPath("~/reports/MAGRP_Total.rdlc");for (int i = 0; i < 3; i++)

{

renderedBytesAux = localReport.Render(reportType, deviceInfo, out mimeType, out encoding, out fileNameExtension, out streams, out warnings);  //

renderedBytes = ConcatByte(renderedBytes, renderedBytesAux);  //ConcatBytes concat two Byte[]

}

 It works good, BUT the problem is that the call  localReport.Render use a lot of time to process one copy of a report. So, I want to find any other way to do this one. Can I use only one time the call localReport.Render to generate 3 copies of the same report??

I have tried the next code but as I said in my first post, the result is, curiously a report with a size multiplicate per 3, but it only has the pages of 1 report copy...

 renderedBytesAux = localReport.Render(reportType, deviceInfo, out mimeType, out encoding, out fileNameExtension, out streams, out warnings); 

renderedBytes = ConcatByte(renderedBytes, renderedBytesAux);  //ConcatBytes concat two Byte[]

renderedBytes = ConcatByte(renderedBytes, renderedBytesAux);  //ConcatBytes concat two Byte[]

 

To summary, is it possible to use only one time the call localReport.Render to generate 3 copies of the same report??

 

 

 

Answer 3

User1586071711 posted

I have tried the next code but as I said in my first post, the result is, curiously a report with a size multiplicate per 3, but it only has the pages of 1 report copy...

Man this is so old but Im having the same problem...  Ordoin I hope you see this, did you find how to create a copy of the same RDLC?